diff options
| author | Bodong Wang <bodong@mellanox.com> | 2016-10-31 13:16:44 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-12-13 21:34:03 +0300 |
| commit | 7e43a2a5bae39fedaa7cce21d637e0c8d96d8e54 (patch) | |
| tree | 519f0766738abbd319167e32bf4c8a8321c41de5 /drivers/infiniband | |
| parent | 191ded4a4d991acf17207e0b4370fef070bce3e9 (diff) | |
| download | linux-7e43a2a5bae39fedaa7cce21d637e0c8d96d8e54.tar.xz | |
IB/mlx5: Report mlx5 CQE compression caps during query
The capabilities include:
- Max number of compressed and aggregated CQEs in a single session,
while zero means unsupported.
- For Responder, there are two formats of mini CQE: mini CQE with Rx
hash and mini CQE with checksum. They're mutual exclusive.
Signed-off-by: Bodong Wang <bodong@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/main.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c index a16207c33333..2687a93c4af2 100644 --- a/drivers/infiniband/hw/mlx5/main.c +++ b/drivers/infiniband/hw/mlx5/main.c @@ -683,6 +683,16 @@ static int mlx5_ib_query_device(struct ib_device *ibdev, if (field_avail(typeof(resp), reserved, uhw->outlen)) resp.response_length += sizeof(resp.reserved); + if (field_avail(typeof(resp), cqe_comp_caps, uhw->outlen)) { + resp.cqe_comp_caps.max_num = + MLX5_CAP_GEN(dev->mdev, cqe_compression) ? + MLX5_CAP_GEN(dev->mdev, cqe_compression_max_num) : 0; + resp.cqe_comp_caps.supported_format = + MLX5_IB_CQE_RES_FORMAT_HASH | + MLX5_IB_CQE_RES_FORMAT_CSUM; + resp.response_length += sizeof(resp.cqe_comp_caps); + } + if (uhw->outlen) { err = ib_copy_to_udata(uhw, &resp, resp.response_length); |